81 



tree where the caterpillars had been feeding. This was the first and 

 only colon}^ of these insects observed by us injuring peaches. 



The asparagus beetle, both Crioceris asparagl Linn, and C. 12-j)imc- 

 tata\jm\\.. were present this season in the asparagus-growing areas. 

 The former species was ver}- conspicuous, especially on j'oung aspara- 

 gus beds, in which much damage was done. The latter species was seen 

 only three times during the early part of the season. Hand picking 

 of the beetles was resorted to in most cases where young beds were 

 attacked. 



The bean leaf -beetle, Cerotoma trifurcata Forst., which we first ob- 

 served in this State in 1896, was again very destructive to wax and 

 Lima beans throughout the trucking areas. The early varieties were 

 more severely injured than the later ones. Paris green in land 

 plaster, at the rate of 1 pound in 80 to 100 pounds, dusted over the 

 plants as the leaves expanded, proved an effective remedy. This was 

 repeated two or three times at intervals of a week or ten days. 



The black aphis of violets, JRhopalosiphum violm Perg., was dis- 

 covered in two greenhouses doing serious injury to violets. 



The clover-leaf weevil, Phyfonomus punctatim Fab., was very com- 

 mon over a large area of the State. Clover was injured to a consider- 

 able extent early in the season, and many growers were apprehensive 

 about the safet}' of their crop. A fungous disease, Emiyum, {Entomo- 

 phthora)sp?iceros]?€rma^Qj-^^Q2iYQdL upon the larvse, and by the middle of 

 May it was difficult to find a living specimen. Their dead bodies were 

 coiled about leaves, stems, grass blades, etc. The disease was wide- 

 spread throughout the State, and of the same virulent character. 



The Colorado potato beetle, Do)njj)hora 10-lineata Say, has been a 

 pest of a more serious character than one year ago. Paris green, 

 applied both dry and in solution with Bordeaux mixture, has been 

 effective. 



The strawberry leaf -roller, Phoxopte7')>< cow/ptana Froel. , has been 

 observed b}^ us doing slight damage to strawberries in Anne Arundel 

 and Caroline counties. In both cases hand picking of the leaves was 

 resorted to, as spraying was not desirable. 



The destructive green pea louse, Nectarojyhora destructor Johns. ^ has 

 maintained its notorious reputation as a ravenous pest to peas, and has 

 this year extended its ravages into the Northwest (Wisconsin). The 

 loss estimated along the Atlantic Coast States is placed at 14,000,000 

 at this time (June 15); while the losses in the central West and the 

 Northwest can not be estimated at this time. [Later: August 11 the 

 writer received a letter from William Lorsen & Co. , of Green Bay, 

 Wis., in which they said they had planted 2,400 acres of peas, and had 

 a fair crop upon all except the late plantings. About the 20th of July 

 they noticed the louse upon a 500-acre field just ready to bloom, and in 

 less than a week all the peas were dead and brown], 

 6878— No. 26 6 



